pure math公仔箱論壇0 E* Q) E! y8 G% ~% Y# A
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[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+yTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。0 e% E, E: J# E+ O5 Q( O
tvb now,tvbnow,bttvb* Q, d. e) g, H# K+ F$ R% \2 j' W
if x = 111 y = 2222, you number is 111-2222 |